Episode 6550

"Episode 6550" of the British television soap opera EastEnders was broadcast in the United Kingdom on BBC One on 5 September 2022. The episode was directed by Toby Frow and written by Simon Ashdown. It takes the form of a flashback episode, set in both the present and in January 1979, and explores the reason for DCI Samantha Keeble's vendetta against the Mitchell family.

The episode was first announced in July 2022, when it was reported that Jaime Winstone, who had previously portrayed a young Barbara Windsor in the 2017 biopic film Babs, would appear as Peggy. The episode also featured the first on-screen appearance of Peggy's husband, Eric, as well as other members of the Mitchell family. The episode won praise among critics and viewers alike, with viewers calling for further flashback episodes to be made. Executive Producer Chris Clenshaw signalled his interest in making further flashback episodes.